Special Counsel Robert Mueller’s office on Friday disputed a report in BuzzFeed News that President Donald Trump’s former lawyer Michael Cohen said Trump directed him to lie to Congress.

BuzzFeed, citing two unnamed law enforcement sources, said Cohen, who is going to prison for lying to Congress, told investigators working for Mueller that Trump had directed him to lie about efforts to build a skyscraper in Moscow while he was running for president.

“BuzzFeed’s description of specific statements to the Special Counsel’s Office, and characterization of documents and testimony obtained by this office, regarding Michael Cohen’s Congressional testimony are not accurate,” Peter Carr, a spokesman for Mueller’s office, said in a rare statement from the special counsel.

While Mueller’s spokesman stopped short of declaring the article false in its entirety, he disputed portions of the story that appear to go to the heart of the allegations made against Trump.

It was the first time Mueller has commented about a news article concerning his probe of Russia’s meddling in the 2016 presidential election.